Riser marking tool



FIG. 1 is a perspective view of the inventive riser marking tool;

FIG. 2 is an elevated front side view of the tool shown in FIG. 1;

FIG. 3 is an elevated back side view of the tool shown in FIG. 1;

FIG. 4 is a right side view of the tool shown in FIG. 1, the left side view being identical thereto; and,

FIG. 5 is a top plan view of the tool shown in FIG. 1, the bottom plan view being identical thereto. 

The ornamental design for a riser marking tool, as shown and described. 